Subjects of Equestria! We are pleased to kick off the Nightmare Night Festivities and the 14th anniversary of the return of our beloved Princess Luna! Join us in celebration!
If you want to look at it from a meta sense. Bonnie and Lauren are like Celestia and Twilight. The former taking on the latter as their apprentice and passing the torch on when the time is right. I hope Mrs Zacherle knows what her creation has become and is proud.